USS Marabout (AMc-50) was an Accentor-class coastal minesweeper acquired by the U.S. Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing.

On 9 December, two days after the United States entered World War II, she sailed for Bermuda to help combat German U-boats in the western Atlantic Ocean.

Marabout, a coastal minesweeper, had the mission of ensuring safe passage to Allied shipping through the entrances of the ports.

Joining ServRon 5 in the fall, she supported units of the Fleet Operation Training Command, in particular task group TG 23.1, until ordered to New London, Connecticut, 7 November 1944, for duty under ComSubLant.

There, for the next year and a half, she performed widely varied duties including radar jamming and sonar operations with other Naval and Coast Guard units in the area and at the Submarine School.